<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="css/demo.css">
</head>
<body>
    <div class="conmon">
 
    <ul class="conmon-a">
        <li >
            <div class="conmon-b"></div>
        </li>
        <li class="conmon-c">
            <div class="conmon-d">首页
                <div class="conmon-f"></div>
            </div>
            <div  class="conmon-d">下载</div>
            <div  class="conmon-d">支持</div>  
        </li>
       </ul>
 
   <div class="demo">
       <div class="demo-a">
           <div class="demo-b"></div>
           <div class="demo-c">专业团队沟通协作</div>
           <div class="demo-d">支持云文件、在线文档、邮件收发、日程等办公功能</div>
           <div class="demo-f">立即下载
            <div class="demo-g">立即下载</div> 
           </div>          
       </div>
       <div class="img">
           <div class="img-a"></div>
       </div>
   </div>
    </div>
    <ul class="tear">
    <li class="tear-1">
        <div class="tear-2"></div>
        <div class="tear-3">熟悉的QQ习惯</div>
        <div class="tear-4">使用QQ账户登陆，QQ好友和消息无缝同步</div>
    </li>
    <li class="tear-1">
            <div class="tear-2"></div>
            <div class="tear-3">熟悉的QQ习惯</div>
            <div class="tear-4">使用QQ账户登陆，QQ好友和消息无缝同步</div> </li>
    <li class="tear-1">
            <div class="tear-2"></div>
            <div class="tear-3">熟悉的QQ习惯</div>
            <div class="tear-4">使用QQ账户登陆，QQ好友和消息无缝同步</div>
    </li>
    </ul>
    <div class="dess">
        <div class="dess-a">10G免费云文件</div>
        <div class="dess-b">上传文件云端存储，收发文件长期有效。</div>
        <div class="dess-1"></div>
        <div class="dess-c">在线文档</div>
        <div class="dess-d">在线Wold/Excel，多端多人随时编辑。</div>
        <div class="dess-2"></div>
        <div class="dess-f">消息云端同步</div>
        <div class="dess-g">手机电脑消息同步，历史消息随时查看。</div>
        <div class="dess-3"></div>
    </div>
   
</body>
</html>